Solar and Heliospheric Phenomena in October-November 2003: Causes and Effects

Details Solar and Heliospheric Phenomena in October-November 2003: Causes and Effects Solar and Heliospheric Phenomena in October-November 2003: Causes and Effects

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cosre..42..435v&link_type=abstract

Cosmic Research, v. 42, Issue 5, p. 435-488 (2004).

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Scientific paper

We present new observational data on the phenomena of extremely high activity on the Sun and in the heliosphere that took place in October-November 2003. A large variety of solar and heliospheric parameters give evidence that the interval under consideration is unique over the entire observation time. Based on these data, comparing them with similar situations in the past and using available theoretical concepts, we discuss possible cause-and-effect connections between the processes observed. The paper includes the first results and conclusions derived by the collaboration ``Solar Extreme Events-2003'' organized in Russia for detailed investigations of these events. As a result of our consideration, it is beyond question that the physical causes of solar and heliospheric phenomena in October-November 2003 are not exclusively local and do not belong only to the active regions and solar atmosphere above them. The energy reservoirs and driving forces of these processes have a more global nature. In general, they are hidden from an observer, since ultimately their sources lie in the subphotospheric layers of the Sun, where changes that are fast and difficult to predict can sometimes take place (and indeed they do). Solar flares can serve as sufficiently good tracers of these sudden changes and reconstructions on the Sun, although one can still find other diagnostic indicators among the parameters of magnetic fields, motions of matter, and emission characteristics.

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